| Abstract: | Natural hybridization is rare in the family Ictaluridae. Putative hybrids of the madtoms Noturus flavus and N. insignis were collected from Blackwater River, Monongahela River drainage, WV. Noturus flavus is native to the Monongahela River drainage, whereas N. insignis is nonnative. We quantified morphological differences among N. flavus, N. insignis, and putative hybrids by sheared principal components analysis of morphometric characters. Putative hybrids were intermediate in tooth patch dimensions, caudal fin pigmentation, length of the dorsal fin base, distance between the adipose/caudal notch and base of caudal fin, and position of anal fin. Hybridization between N. flavus and N. insignis is supported by morphological intermediacy, and may be linked to higher abundances of N. insignis or degraded habitat in the Blackwater River. |
| Genre: | Article |
| ProdID: | 70026241 |
| Citation Author: | Welsh, S. A.; Cincotta, D. A. |
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| Citation End Page: | 406 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Northeastern Naturalist |
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| Citation Number Of Pages: | 8 |
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| Citation Search Results Text: | Natural hybrids of the madtoms, Noturus flavus and Noturus insignis, from the Monongahela River drainage, West Virginia; 2004; Article; Journal; Northeastern Naturalist; Welsh, S. A.; Cincotta, D. A. |
| Citation Start Page: | 399 |
| Citation Volume: | 11 |
| Citation Year: | 2004 |
| Type: | citation/reference |
| Text: | Natural hybrids of the madtoms, Noturus flavus and Noturus insignis, from the Monongahela River drainage, West Virginia; 2004; Article; Journal; Northeastern Naturalist; Welsh, S. A.; Cincotta, D. A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 2004 00:00 -0600 |
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